系统分析与设计hw5（lesson7）

领域建模

阅读 Asg_RH 文档，按用例构建领域模型。
- 按 Task2 要求，请使用工具 UMLet，截图格式务必是 png 并控制尺寸。
- 说明：请不要受 PCMEF 层次结构影响。你需要识别实体（E）和中介实体（M，也称状态实体）
  - 在单页面应用（如 vue）中，E 一般与数据库构建有关， M 一般与 store 模式有关
  - 在 java web 应用中，E 一般与数据库构建有关， M 一般与 session 有关
数据库建模(E-R 模型)
- 按 Task 3 要求，给出系统的 E-R 模型（数据逻辑模型）
- 建模工具 PowerDesigner（简称PD）或开源工具 OpenSystemArchitect
- 不负责的链接
  http://www.cnblogs.com/mcgrady/archive/2013/05/25/3098588.html
- 导出 Mysql 物理数据库的脚本
- 简单叙说数据库逻辑模型与领域模型的异同

E-R模型如下：
这里写图片描述

脚本如下：

-- MySQL Script generated by MySQL Workbench
-- Mon Apr 30 20:40:49 2018
-- Model: New Model    Version: 1.0
-- MySQL Workbench Forward Engineering

SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0;
SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0;
SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='TRADITIONAL,ALLOW_INVALID_DATES';

-- -----------------------------------------------------
-- Schema mydb
-- -----------------------------------------------------

-- -----------------------------------------------------
-- Schema mydb
-- -----------------------------------------------------
CREATE SCHEMA IF NOT EXISTS `mydb` DEFAULT CHARACTER SET utf8 ;
USE `mydb` ;

-- -----------------------------------------------------
-- Table `mydb`.`Traveler`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`Traveler` (
  `idTraveler` INT NOT NULL,
  `name` VARCHAR(30) NOT NULL,
  `email` VARCHAR(45) NOT NULL,
  PRIMARY KEY (`idTraveler`))
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `mydb`.`CreditCardPayment`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`CreditCardPayment` (
  `card_number` VARCHAR(20) NOT NULL,
  `security_code` VARCHAR(45) NOT NULL,
  PRIMARY KEY (`card_number`))
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `mydb`.`Reservation`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`Reservation` (
  `idReservation` INT NOT NULL,
  `check_in_date` DATE NOT NULL,
  `number_of_nights` INT NOT NULL,
  `number_of_adults` INT NOT NULL,
  `number_of_children` INT NOT NULL,
  `idTraveler` INT NOT NULL,
  `idCreditCardPayment` VARCHAR(20) NOT NULL,
  PRIMARY KEY (`idReservation`),
  INDEX `idTraveler_idx` (`idTraveler` ASC),
  INDEX `idCreditCardPayment_idx` (`idCreditCardPayment` ASC),
  CONSTRAINT `idTraveler`
    FOREIGN KEY (`idTraveler`)
    REFERENCES `mydb`.`Traveler` (`idTraveler`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION,
  CONSTRAINT `idCreditCardPayment`
    FOREIGN KEY (`idCreditCardPayment`)
    REFERENCES `mydb`.`CreditCardPayment` (`card_number`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `mydb`.`Locatioin`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`Locatioin` (
  `code` INT NOT NULL,
  `name` VARCHAR(45) NOT NULL,
  `hot` VARCHAR(45) NOT NULL,
  PRIMARY KEY (`code`))
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `mydb`.`Hotel`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`Hotel` (
  `idHotel` INT NOT NULL,
  `name` VARCHAR(45) NOT NULL,
  `star_rating` INT NOT NULL,
  `idLocation` INT NOT NULL,
  PRIMARY KEY (`idHotel`),
  INDEX `idLocation_idx` (`idLocation` ASC),
  CONSTRAINT `idLocation`
    FOREIGN KEY (`idLocation`)
    REFERENCES `mydb`.`Locatioin` (`code`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `mydb`.`RoomDescription`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`RoomDescription` (
  `idRoomDescription` INT NOT NULL,
  `type` VARCHAR(10) NOT NULL,
  `price` INT NOT NULL,
  PRIMARY KEY (`idRoomDescription`))
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `mydb`.`Room`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`Room` (
  `room_number` INT NOT NULL,
  `isAvailable` TINYINT NOT NULL,
  `date` DATE NOT NULL,
  `idHotel` INT NOT NULL,
  `idReservation` INT NOT NULL,
  `idRoomDescription` INT NOT NULL,
  PRIMARY KEY (`room_number`),
  INDEX `idHotel_idx` (`idHotel` ASC),
  INDEX `idReservation_idx` (`idReservation` ASC),
  INDEX `idRoomDescription_idx` (`idRoomDescription` ASC),
  CONSTRAINT `idHotel`
    FOREIGN KEY (`idHotel`)
    REFERENCES `mydb`.`Hotel` (`idHotel`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION,
  CONSTRAINT `idReservation`
    FOREIGN KEY (`idReservation`)
    REFERENCES `mydb`.`Reservation` (`idReservation`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION,
  CONSTRAINT `idRoomDescription`
    FOREIGN KEY (`idRoomDescription`)
    REFERENCES `mydb`.`RoomDescription` (`idRoomDescription`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


SET SQL_MODE=@OLD_SQL_MODE;
SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS;
SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS;

数据库逻辑模型与领域模型的异同：

异：
数据库逻辑模型是在软件的实际开发过程中建立的，它明确地给出了软件存储数据的数据类型，方式等等。
领域模型是对领域内的概念类或现实世界中对象的可视化表示，主要是为了分析业务需求而建立的。
同：
两者都是对现实问题的抽象，它们都以图形化的形式，展示了领域中的对象以及它们之间的关系。

系统分析与设计hw5（lesson7）

领域建模

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